SU31616A1 - The method of obtaining urea-aldehyde resins - Google Patents

The method of obtaining urea-aldehyde resins

Info

Publication number
SU31616A1
SU31616A1 SU120677A SU120677A SU31616A1 SU 31616 A1 SU31616 A1 SU 31616A1 SU 120677 A SU120677 A SU 120677A SU 120677 A SU120677 A SU 120677A SU 31616 A1 SU31616 A1 SU 31616A1
Authority
SU
USSR - Soviet Union
Prior art keywords
fabric
aldehyde resins
drying
obtaining urea
reactive mixture
Prior art date
Application number
SU120677A
Other languages
Russian (ru)
Inventor
А.Л. Эйдлин
Original Assignee
А.Л. Эйдлин
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by А.Л. Эйдлин filed Critical А.Л. Эйдлин
Priority to SU120677A priority Critical patent/SU31616A1/en
Application granted granted Critical
Publication of SU31616A1 publication Critical patent/SU31616A1/en

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  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Treatment Of Fiber Materials (AREA)

Description

Многочисленна  патентна  литература указывает на чрезвычайную сложность получени  хорошего фабриката из мочевино-альдегидных смол. Особенно сложным моментом следует считать сушку после конденсации, при введении волокнистого наполнител . Если смешивать наполнитель (волокно) с просушенной смолой, то не произойдет пропитки наполнител , что влечет за собой неплавкий продукт. Если мешать наполнитель с мало-обезвоженным продуктом, то чрезвычайно осложн етс  сушка из-за быстрого желатинировани  смолы еще до освобождени  ее от влаги.Numerous patent literature indicates the extreme difficulty of obtaining a good product from urea-aldehyde resins. Particularly difficult point should be considered drying after condensation, with the introduction of fibrous filler. If you mix the filler (fiber) with the dried resin, the filler will not be impregnated, which results in a non-meltable product. If the filler interferes with the slightly dehydrated product, drying is extremely complicated due to the rapid gelation of the resin even before it is free from moisture.

В цел х устранени  сложности процесса сушки конденсацию реактивной смеси ведут на ткани с большой поверхностью .In order to eliminate the complexity of the drying process, the condensation of the reactive mixture is conducted on a fabric with a large surface.

Способ заключаетс  в том, что конденсаци  реактивной массы в любых молекул рных соотношени х, в присутствии катализатора или без такового, ведетс  на тонкой ткани (наиболее подходит редка  ткань вроде марли).The method consists in the fact that the condensation of the reactive mass in any molecular ratio, in the presence or absence of a catalyst, is carried out on a thin fabric (a fabric such as gauze is most appropriate).

Реактивна  смесь, пропитавша  насквозь погруженную в нее ткань, быстро конденсируетс  и образует смолу в нитках ткани. Ткань развешиваетс  дл  сушки на воздухе при комнатной температуре. завершаетс  в )The reactive mixture, which has soaked through the fabric immersed in it, quickly condenses and forms a resin in the threads of the fabric. The fabric is hung for drying in air at room temperature. completed c)

чекие 2-3 часов. Быстрота сушки обусловливаетс  большой поверхностью материала при небольшой массе смолы (на каждый квадратный метр ткани приходитс  около 20 г реактивной смеси), котора  затем, при соприкосновении с воздухом, быстро высыхает (высушенна  хрупка  ткань растираетс  в порошок , идущий дл  прессовки). Така  быстрота и равномерна  просушка материала дает продукт очень плавкий, в противоположность материалам, высушивающимс  долго при незначительной поверхности.2-3 hours check. The speed of drying is due to the large surface of the material with a small mass of resin (for each square meter of fabric there is about 20 g of the reactive mixture), which then, in contact with air, dries quickly (the dried fragile fabric is ground into powder for pressing). Such quick and uniform drying of the material gives the product very fusible, as opposed to materials drying for a long time with a slight surface.

Способ этот разрешает также ведение процесса получени  мочевино-альдегидных смол непрерывным потоком. Ткань (марл  и т. п.), намотанна  на рулон, протаскиваетс  через реакционную смесь, поступает в полимеризатор , где происходит конденсаци . После этого ткань поступает в тоннельную сушку, где просушиваетс  теплым воздухом до нужного состо ни , при котором материал получает нужную хрупкость дл  размола в порошок.This method also permits the management of the process for the preparation of urea-aldehyde resins in a continuous stream. The fabric (gauze, etc.), wound on a roll, is pulled through the reaction mixture, enters the polymerizer where condensation occurs. After that, the fabric enters the tunnel drying, where it is dried with warm air to the desired state, in which the material gets the desired brittleness for grinding into powder.

Предмет изобретени .The subject matter of the invention.

Claims (2)

1. Способ получени  мочевино-альдег1:д ых смол, отличающийс  тем, чта1. A method of producing urea-aldeg1: d resins, characterized in that конденсацию реактивной смеси ведут на ткани.condensation of the reactive mixture is carried on the fabric. 2. Прием выполнени  способа по п. 1, отличающийс  тем, что пропитанную реактивной смесью ткань провод т2. Acceptance of the method according to claim 1, characterized in that the fabric soaked in the reactive mixture is carried out через ванну, помещают в полимеризатор с соответствующей дл  реакции температурой , после чего ткань сушат в сушилке и размалывают в порошок дл изготовлени  прессовочных изделий.through a bath, placed in a polymerizer with the appropriate temperature for the reaction, after which the fabric is dried in a dryer and ground to powder for making press products.
SU120677A 1932-12-21 1932-12-21 The method of obtaining urea-aldehyde resins SU31616A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU120677A SU31616A1 (en) 1932-12-21 1932-12-21 The method of obtaining urea-aldehyde resins

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU120677A SU31616A1 (en) 1932-12-21 1932-12-21 The method of obtaining urea-aldehyde resins

Publications (1)

Publication Number Publication Date
SU31616A1 true SU31616A1 (en) 1933-08-31

Family

ID=48348922

Family Applications (1)

Application Number Title Priority Date Filing Date
SU120677A SU31616A1 (en) 1932-12-21 1932-12-21 The method of obtaining urea-aldehyde resins

Country Status (1)

Country Link
SU (1) SU31616A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2474629C2 (en) * 2007-12-19 2013-02-10 Дайнеа Ой Resin for producing inorganic fibre material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2474629C2 (en) * 2007-12-19 2013-02-10 Дайнеа Ой Resin for producing inorganic fibre material

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